package lab01;

/**
 * Created by 李晓容 on 2017/10/8.
 */
public class Testo8 {
    public static void main(String[] args) {
        String[] s = new String[]{"A", "B", "C", "D", "E", "F",
                "G", "H", "I", "J", "K", "L", "M",
                "N", "O", "P", "Q", "R", "S", "T"};
        int a;
        int b;
        int c;
        int num1 = 0;
        int num2 = 10;
        for (a = 1; a < 5; a++) {
            for (b = 0; b < 4 - a; b++) {
                System.out.print(" ");
            }
            for (c = 0; c < a; c++) {
                System.out.print(s[num1]);
                System.out.print(" ");
                num1++;
            }
            System.out.println();
        }

        for (a = 1; a < 5; a++) {
            for (b = 1; b < a; b++) {
                System.out.print(" ");
            }
            for (c = 5; c > a; c--) {
                System.out.print(s[num2]);
                System.out.print(" ");
                num2++;
            }
            System.out.println();
        }
    }

}


